甲こう殻かく

noun, noun which may take the genitive case particle 'no'

carapace; shell; crust

Refers to the hard outer covering of crustaceans, insects, or other arthropods. Often used in biological contexts.

• カニの甲こう殻かくはとても硬かたい。

  A crab's shell is very hard.

• 甲こう殻かく類るいにはエビやカニが含ふくまれる。

  Crustaceans include shrimp and crabs.